.intro{
    width: 100%;
    height: 800px;
    /* 786px */
    /* background-color: #74b9ff; */
    background-image: url(../img/index-nav-bg3.png);
    background-size: cover;
}

.big-banner{
    font-size: 100px;
    color: rgba(255, 255, 255, 0.3);
    font-family:  Microsoft YaHei;
    font-style: italic;
    /* 斜体 简洁 */
    
    /* margin-top: 66px; */
}
/* ------------------------------------------------- */
.bg{
    background-color:#eff5f9;
}
/* 大标题 */
.header{
    height: 50px;
    border-bottom: 1px solid grey;
}

.head-logo{
    float: left;
    margin-left: 10px;
    margin-top: 14px;
    zoom: 0.8;
}
.head-logo-{
    float: left;
    margin-left: 10px;
    margin-top: 14px;
    zoom: 0.7;
}
.book-more{
    float: right;
    margin-right: 20px;
    margin-top: 14px;
    zoom: 0.7;
    cursor: pointer;
}

/* ---------------------------------------------------- */
/* 锚点需要的 */
a{
    display: block;
}
/* font-------------------------------------------------- */
.big-h{
    margin-left: 10px;
    font-size: 30px;
    float: left;
    margin-top: 5px;
}
.middle-h{
    /* margin-top: 20px; */
    font-size: 20px;
}


.nav ul{
    display:none;
}